{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:DLEDKIDLNDOMJYR4IHGM2Q2P7A","short_pith_number":"pith:DLEDKIDL","canonical_record":{"source":{"id":"2605.28374","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-27T12:13:10Z","cross_cats_sorted":[],"title_canon_sha256":"4b8915b687e518bc80f14a24ffc81a53020d02423643da558d159dcda216649c","abstract_canon_sha256":"8bd49cb681bfd7b28c143f9ee922ce0ec2fd1ecde21322873bc37c90e82ea563"},"schema_version":"1.0"},"canonical_sha256":"1ac835206b68dcc4e23c41cccd434ff81b78e91ba59cf3f6dbd6109748dbe8f6","source":{"kind":"arxiv","id":"2605.28374","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.28374","created_at":"2026-05-28T01:05:16Z"},{"alias_kind":"arxiv_version","alias_value":"2605.28374v1","created_at":"2026-05-28T01:05:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.28374","created_at":"2026-05-28T01:05:16Z"},{"alias_kind":"pith_short_12","alias_value":"DLEDKIDLNDOM","created_at":"2026-05-28T01:05:16Z"},{"alias_kind":"pith_short_16","alias_value":"DLEDKIDLNDOMJYR4","created_at":"2026-05-28T01:05:16Z"},{"alias_kind":"pith_short_8","alias_value":"DLEDKIDL","created_at":"2026-05-28T01:05:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:DLEDKIDLNDOMJYR4IHGM2Q2P7A","target":"record","payload":{"canonical_record":{"source":{"id":"2605.28374","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-27T12:13:10Z","cross_cats_sorted":[],"title_canon_sha256":"4b8915b687e518bc80f14a24ffc81a53020d02423643da558d159dcda216649c","abstract_canon_sha256":"8bd49cb681bfd7b28c143f9ee922ce0ec2fd1ecde21322873bc37c90e82ea563"},"schema_version":"1.0"},"canonical_sha256":"1ac835206b68dcc4e23c41cccd434ff81b78e91ba59cf3f6dbd6109748dbe8f6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-28T01:05:16.398532Z","signature_b64":"1+7wPiYWyiObWyktB2z2nTnvm9bgK+MGnPX2mc2qu5D1/p2GwlUL8Rsy4/ewZo4v1dSsAb2Py7HvuEvJZf+ZCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1ac835206b68dcc4e23c41cccd434ff81b78e91ba59cf3f6dbd6109748dbe8f6","last_reissued_at":"2026-05-28T01:05:16.398065Z","signature_status":"signed_v1","first_computed_at":"2026-05-28T01:05:16.398065Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.28374","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-28T01:05:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Bdvrw2L12CK4/RAkHX9lj7pHL8G3NmHa/q2PiY7D1vyM1Xem0TmjBpHmyVLRJN5PMLtZsN3DnRA+Fd32nnF7Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T04:50:13.823161Z"},"content_sha256":"9edcfdccfcbfae1f3c7114a8d96edc12b9eea1407c251cd85f954ea4d6fc9931","schema_version":"1.0","event_id":"sha256:9edcfdccfcbfae1f3c7114a8d96edc12b9eea1407c251cd85f954ea4d6fc9931"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:DLEDKIDLNDOMJYR4IHGM2Q2P7A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Global Bounds beyond Local Quantum Metrology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Augusto Smerzi, Hai-Long Shi","submitted_at":"2026-05-27T12:13:10Z","abstract_excerpt":"Quantum Cram\\'er--Rao theory is intrinsically local: it bounds precision near a specified parameter value, and its saturating measurement generally depends on that value. Barankin-type bounds use finite parameter displacements, but remain anchored to a chosen reference value. This leaves open a basic global-estimation problem: when the parameter is known only within a broad domain, what precision can be guaranteed by a single estimator and a single measurement strategy fixed before the true value is localized? We answer this question by introducing global score functions tied to a weighted var"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.28374","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.28374/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-28T01:05:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"78zd86H+MTVsD4lk38Ql70yEbvwecgNKlObyx9R6TDuJwAXkBppPXxN58Q25lA8v5XsbYEsmk1pRxTX0p67fBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T04:50:13.823555Z"},"content_sha256":"329b814f34e6503841d9110122821afaf1335dec923e4649c58145a02c18f020","schema_version":"1.0","event_id":"sha256:329b814f34e6503841d9110122821afaf1335dec923e4649c58145a02c18f020"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DLEDKIDLNDOMJYR4IHGM2Q2P7A/bundle.json","state_url":"https://pith.science/pith/DLEDKIDLNDOMJYR4IHGM2Q2P7A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DLEDKIDLNDOMJYR4IHGM2Q2P7A/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-27T04:50:13Z","links":{"resolver":"https://pith.science/pith/DLEDKIDLNDOMJYR4IHGM2Q2P7A","bundle":"https://pith.science/pith/DLEDKIDLNDOMJYR4IHGM2Q2P7A/bundle.json","state":"https://pith.science/pith/DLEDKIDLNDOMJYR4IHGM2Q2P7A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DLEDKIDLNDOMJYR4IHGM2Q2P7A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:DLEDKIDLNDOMJYR4IHGM2Q2P7A","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"8bd49cb681bfd7b28c143f9ee922ce0ec2fd1ecde21322873bc37c90e82ea563","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-27T12:13:10Z","title_canon_sha256":"4b8915b687e518bc80f14a24ffc81a53020d02423643da558d159dcda216649c"},"schema_version":"1.0","source":{"id":"2605.28374","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.28374","created_at":"2026-05-28T01:05:16Z"},{"alias_kind":"arxiv_version","alias_value":"2605.28374v1","created_at":"2026-05-28T01:05:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.28374","created_at":"2026-05-28T01:05:16Z"},{"alias_kind":"pith_short_12","alias_value":"DLEDKIDLNDOM","created_at":"2026-05-28T01:05:16Z"},{"alias_kind":"pith_short_16","alias_value":"DLEDKIDLNDOMJYR4","created_at":"2026-05-28T01:05:16Z"},{"alias_kind":"pith_short_8","alias_value":"DLEDKIDL","created_at":"2026-05-28T01:05:16Z"}],"graph_snapshots":[{"event_id":"sha256:329b814f34e6503841d9110122821afaf1335dec923e4649c58145a02c18f020","target":"graph","created_at":"2026-05-28T01:05:16Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2605.28374/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum Cram\\'er--Rao theory is intrinsically local: it bounds precision near a specified parameter value, and its saturating measurement generally depends on that value. Barankin-type bounds use finite parameter displacements, but remain anchored to a chosen reference value. This leaves open a basic global-estimation problem: when the parameter is known only within a broad domain, what precision can be guaranteed by a single estimator and a single measurement strategy fixed before the true value is localized? We answer this question by introducing global score functions tied to a weighted var","authors_text":"Augusto Smerzi, Hai-Long Shi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-27T12:13:10Z","title":"Global Bounds beyond Local Quantum Metrology"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.28374","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:9edcfdccfcbfae1f3c7114a8d96edc12b9eea1407c251cd85f954ea4d6fc9931","target":"record","created_at":"2026-05-28T01:05:16Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"8bd49cb681bfd7b28c143f9ee922ce0ec2fd1ecde21322873bc37c90e82ea563","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-27T12:13:10Z","title_canon_sha256":"4b8915b687e518bc80f14a24ffc81a53020d02423643da558d159dcda216649c"},"schema_version":"1.0","source":{"id":"2605.28374","kind":"arxiv","version":1}},"canonical_sha256":"1ac835206b68dcc4e23c41cccd434ff81b78e91ba59cf3f6dbd6109748dbe8f6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1ac835206b68dcc4e23c41cccd434ff81b78e91ba59cf3f6dbd6109748dbe8f6","first_computed_at":"2026-05-28T01:05:16.398065Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-28T01:05:16.398065Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1+7wPiYWyiObWyktB2z2nTnvm9bgK+MGnPX2mc2qu5D1/p2GwlUL8Rsy4/ewZo4v1dSsAb2Py7HvuEvJZf+ZCg==","signature_status":"signed_v1","signed_at":"2026-05-28T01:05:16.398532Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.28374","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9edcfdccfcbfae1f3c7114a8d96edc12b9eea1407c251cd85f954ea4d6fc9931","sha256:329b814f34e6503841d9110122821afaf1335dec923e4649c58145a02c18f020"],"state_sha256":"3c9a6f032984fcdd2fb9bade1b2da99867d92bcd1bda2690c2153f749a643576"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QetPq+9rpGGUtAvnHmJ8IQX4/gu8GxosFLmmJBqwrF4A8Yl3BkT+MqrQc4BMVwD04EaWWfaxdz0hMm+ONGX6DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T04:50:13.825464Z","bundle_sha256":"494cdf7344ae543cbb3e488b6968f712e58f2ebecc4e3220a9e5231bb2f3c457"}}